When heat energy of $1500\ joules$, is supplied to a gas at constant pressure $2.1 imes 10^{5}N/m^{2}$, there was an increase in its volume equal to $2.5 imes 10^{- 3}N/m^{2}$. The increase in internal energy of the gas in joules is

Question

When heat energy of $1500\ joules$, is supplied to a gas at constant pressure $2.1 	imes 10^{5}N/m^{2}$, there was an increase in its volume equal to $2.5 	imes 10^{- 3}N/m^{2}$. The increase in internal energy of the gas in joules is

Dr. Abubacker · Accepted Answer

(c) According to FLOT
$\mathrm{\Delta}Q = \mathrm{\Delta}U + P(\mathrm{\Delta}V) \Rightarrow \mathrm{\Delta}U = \mathrm{\Delta}Q - P(\mathrm{\Delta}V)$
$= 1500 - \left( 2.1 	imes 10^{5} ight)\left( 2.5 	imes 10^{- 3} ight) = 975\ joule$

Q. When heat energy of $1500\ joules$, is supplied to a gas at constant pressure $2.1 \times 10^{5}N/m^{2}$, there was an increase in its volume equal to $2.5 \times 10^{- 3}N/m^{2}$. The increase in internal energy of the gas in joules is

Explanation

Reviewed by Dr. Abubacker

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