A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy deltaU of the gas in joules will be
A. –500 J
B. –505 J
C. +505 J
D. 1136.25 J
Answer:B
A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy deltaU of the gas in joules will be
A. –500 J B. –505 J C. +505 J D. 1136.25 J