5 moles of a monatomic gas has its pressure increased from 105 Pa to 1.5*105 Pa. This process occurs at a constant volume of 0.1 m3. How much work is done by the gas?

there is no work done by the gas since the volume remains constant

Explanation:

for a closed system , the work that is done by the gas is defined as

W= ∫p dV

where p= pressure , V= volume

since the volume remains constant dV=0 , therefore W=0

thus there is no work done by the gas

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.