Half mole of an ideal monoatomic gas is heated at a constant pressure of 1   atm from 20 °   C to 90 °   C . Work done by the gas is ( Gas constant, R = 8.21   J   mol - 1   K - 1 )

Question

Half mole of an ideal monoatomic gas is heated at a constant pressure of 1 &#8201; atm from 20 &#176; &#160; C to 90 &#176; &#160; C . Work done by the gas is ( Gas constant, R = 8.21 &#160; J &#160; mol - 1 &#160; K - 1 )

Aicharya · Accepted Answer

Recall the formula of work done in terms of change in volume and pressure, in the case of isobaric process, where pressure is constant, $W = P V_{2} - P V_{1}$ , now take the idea of ideal gas equation,
$W = n R T_{2} - n R T_{1}$ $= \frac{1}{2} \times 8.31 (70)$ $= 291 J$ .

Half mole of an ideal monoatomic gas is heated at a constant pressure of 1   atm from 20 °  …

Solution

Half mole of an ideal monoatomic gas is heated at a constant pressure of 1 &#8201; atm from 20 &#176; &#160;…

Solution

Half mole of an ideal monoatomic gas is heated at a constant pressure of 1 atm from 20 ° …