An engine takes in 5 moles of air at 20   ° C and 1   atm , and compresses it adiabatically to 1 / 10 th of the original volume. Assuming air to be a diatomic ideal gas made up of rigid molecules, the change in its internal energy during this process comes out to be XkJ . The value…

Question

An engine takes in 5 moles of air at 20 &#160; &#176; C and 1 &#160; atm , and compresses it adiabatically to 1 / 10 th of the original volume. Assuming air to be a diatomic ideal gas made up of rigid molecules, the change in its internal energy during this process comes out to be XkJ . The value of X to the nearest integer is:

Aicharya · Accepted Answer

T 1 V 1 &#947; - 1 = T 2 V 2 &#947; - 1 T 2 = T 1 V 1 V 2 &#947; - 1 = T 1 ( 10 ) 7 5 - 1 T 2 = T 1 ( 10 ) 2 / 5 &#916; V = 5 2 n R ; 5 2 &#215; 5 &#215; 3 10 2 / 5 - 1 ( 293 ) 625 6 &#215; 1 . 5 &#215; 293 = 461440 &#8776; 46 ks

An engine takes in 5 moles of air at 20   ° C and 1   atm , and compresses it adiabatically…

Solution

An engine takes in 5 moles of air at 20 &#160; &#176; C and 1 &#160; atm , and compresses it adiabatically…

Solution

An engine takes in 5 moles of air at 20 ° C and 1 atm , and compresses it adiabatically…