How can we calculate the calorific value of a fuel at constant pressu

1.	How can we calculate the calorific value of a fuel at constant pressure?
A.	QC.V. = QC.P. – (Δn)×R×T
B.	QC.V. = QC.P. + (Δn)×R×T
C.	QC.P. = QC.V. – (Δn)×R×T
D.	QC.V. = QC.P. – (Δn)×R×T×S
Answer» D. QC.V. = QC.P. – (Δn)×R×T×S

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