Calculate the work done in the following reaction when 1 mol of SO2 is oxidised at constant pressure at 50 C. State whether work is on the system or by the system.2SO2(g) + O2(g) 2 SO3(g)

nGiven: Temperature = T = 5 C = 50 + 273 = 323 K , R = 8.314 J K-1 mol-1 ,

Consider the reaction: N2 + O2 2NO; H = +180.6 kJ

nwhat is the enthalpy change for the formation of one mole of nitrogen (II) oxide?

Calculate H for the reaction:N2 + 3H2 2NH3

n(The bond dissociation energy for N-N is 163 kJ/mol; H-H is 436 kJ/mol; N-H is 391 kJ/mol).

Calculate the H value of the reaction:HCl + NH3 NH4Cl

n( H values for HCl is -92.30; NH2 is -80.29; NH4Cl is -314.4).

Hydrogen peroxide decomposes according to the following thermochemical reaction:H2O2 (l) H2O (l) + 1/2 O2(g); H = -98.2 kJ

nCalculate the change in enthalpy, H, when 1.00 g of hydrogen peroxide decomposes.

Explore topic-wise MCQs in Bioprocess Engineering.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.	Calculate the work done in the following reaction when 1 mol of SO₂ is oxidised at constant pressure at 50 C. State whether work is on the system or by the system. 2SO_2(g) + O_2(g) 2 SO_3(g)
A.	nGiven: Temperature = T = 5 C = 50 + 273 = 323 K , R = 8.314 J K<sup>-1</sup> mol<sup>-1</sup> ,
B.	1435 kJ
C.	1343 kJ
D.	1345 kJ
E.	1433 kJ
Answer» C. 1343 kJ

Discussion

2.	Refer to Q9 and answer what is the enthalpy change for the reaction of 100.0 g of nitrogen with excess oxygen?
A.	1164 kJ
B.	1190 kJ
C.	1194 kJ
D.	1160 kJ
Answer» B. 1190 kJ

Discussion

3.	Consider the reaction: N₂ + O₂ 2NO; H = +180.6 kJ
A.	nwhat is the enthalpy change for the formation of one mole of nitrogen (II) oxide?
B.	96.80 kJ
C.	95.30 kJ
D.	96.50 kJ
E.	95.50 kJ
Answer» C. 95.30 kJ

Discussion

4.	Calculate H for the reaction: N₂ + 3H₂ 2NH₃
A.	n(The bond dissociation energy for N-N is 163 kJ/mol; H-H is 436 kJ/mol; N-H is 391 kJ/mol).
B.	867
C.	895
D.	847
E.	875
Answer» E. 875

Discussion

5.	Calculate the H value of the reaction: HCl + NH₃ NH₄Cl
A.	n( H values for HCl is -92.30; NH<sub>2</sub> is -80.29; NH<sub>4</sub>Cl is -314.4).
B.	141.8
C.	121.8
D.	131.8
E.	151.8
Answer» B. 141.8

Discussion

6.	Calculate H if a piece of aluminum with a specific heat of 0.9 kJ-kg^-1-K^-1 and a mass of 1.6 kg is heated from 286 K to 299 K.
A.	16.52 kJ
B.	17.72 kJ
C.	18.72 kJ
D.	15.52 kJ
Answer» D. 15.52 kJ

Discussion

7.	Calculate the H of the following reaction: CO_2(g) + H_2(g)O -> H₂CO_3(g) if the standard values of H_f are as follows: CO_2(g) : -393.509 KJ/mol, H₂O_(g): 241.83 KJ/mol, and H₂CO_3(g) : 275.2 KJ/mol.
A.	+360.139 KJ
B.	+350.129 KJ
C.	360.139 KJ
D.	-350.129 KJ
Answer» B. +350.129 KJ

Discussion

8.	If a calorimeter s H is +2001 Joules, how much heat did the substance inside the cup lose?
A.	+2000 J
B.	2001 J
C.	2000J
D.	+ 2001 J
Answer» C. 2000J

Discussion

9.	Calculate H if a piece of metal with a specific heat of 0.98 kJ-kg^-1-K^-1 and a mass of 2kg is heated from 22 C to 28 C.
A.	11.66 kg
B.	11.56 kg
C.	11.76 kg
D.	11.26 kg
Answer» D. 11.26 kg

Discussion

10.	Hydrogen peroxide decomposes according to the following thermochemical reaction: H₂O₂ (l) H₂O (l) + 1/2 O_2(g); H = -98.2 kJ
A.	nCalculate the change in enthalpy, H, when 1.00 g of hydrogen peroxide decomposes.
B.	-2.89 kJ
C.	-2.80 kJ
D.	-2.00 kJ
E.	-2.85 kJ
Answer» B. -2.89 kJ

Discussion

11.	At what standard conditions does the heat of combustion calculated?
A.	26 C, 1 atm
B.	25 C, 0.5 atm
C.	25 C, 1 atm
D.	26 C, 0.5 atm
Answer» D. 26 C, 0.5 atm

Discussion

Explore topic-wise MCQs in Bioprocess Engineering.

Calculate the work done in the following reaction when 1 mol of SO2 is oxidised at constant pressure at 50 C. State whether work is on the system or by the system.2SO2(g) + O2(g) 2 SO3(g)

Refer to Q9 and answer what is the enthalpy change for the reaction of 100.0 g of nitrogen with excess oxygen?

Consider the reaction: N2 + O2 2NO; H = +180.6 kJ

Calculate H for the reaction:N2 + 3H2 2NH3

Calculate the H value of the reaction:HCl + NH3 NH4Cl

Calculate H if a piece of aluminum with a specific heat of 0.9 kJ-kg-1-K-1 and a mass of 1.6 kg is heated from 286 K to 299 K.

Calculate the H of the following reaction: CO2(g) + H2(g)O -> H2CO3(g) if the standard values of Hf are as follows: CO2(g) : -393.509 KJ/mol, H2O(g): 241.83 KJ/mol, and H2CO3(g) : 275.2 KJ/mol.

If a calorimeter s H is +2001 Joules, how much heat did the substance inside the cup lose?

Calculate H if a piece of metal with a specific heat of 0.98 kJ-kg-1-K-1 and a mass of 2kg is heated from 22 C to 28 C.

Hydrogen peroxide decomposes according to the following thermochemical reaction:H2O2 (l) H2O (l) + 1/2 O2(g); H = -98.2 kJ

At what standard conditions does the heat of combustion calculated?

Calculate the work done in the following reaction when 1 mol of SO₂ is oxidised at constant pressure at 50 C. State whether work is on the system or by the system.
2SO_2(g) + O_2(g) 2 SO_3(g)

Consider the reaction:
N₂ + O₂ 2NO; H = +180.6 kJ

Calculate H for the reaction:
N₂ + 3H₂ 2NH₃

Calculate the H value of the reaction:
HCl + NH₃ NH₄Cl

Calculate H if a piece of aluminum with a specific heat of 0.9 kJ-kg^-1-K^-1 and a mass of 1.6 kg is heated from 286 K to 299 K.

Calculate the H of the following reaction: CO_2(g) + H_2(g)O -> H₂CO_3(g) if the standard values of H_f are as follows: CO_2(g) : -393.509 KJ/mol, H₂O_(g): 241.83 KJ/mol, and H₂CO_3(g) : 275.2 KJ/mol.

Calculate H if a piece of metal with a specific heat of 0.98 kJ-kg^-1-K^-1 and a mass of 2kg is heated from 22 C to 28 C.

Hydrogen peroxide decomposes according to the following thermochemical reaction:
H₂O₂ (l) H₂O (l) + 1/2 O_2(g); H = -98.2 kJ