Thermal Efficiency in a Reversible Process

Classical Mechanics Level 5

A quantity of perfect monoatomic gas is performing the reversible cycle in the figure. If the thermal efficiency of this cycle can be written as $\eta=\dfrac{a}{b}$ , where $a$ and $b$ are coprime positive integers, what is the value of $a+b$ ?

The molar specific heat at constant volume is: ${C}_{V}=\frac{3}{2}R$ .
Thermal efficiency is defined as the ratio of heat input to work output, i.e. $\eta=\frac{W}{Q_\textrm{in}}$ .

The answer is 417.

1 solution

Aryan Goyat
Oct 18, 2016

K, Updated.

Can you check that you're successfully receiving email from us now?

Calvin Lin Staff - 4 years, 7 months ago

yep i can sir 1. i was receiving all the notification messages earlier too 2. What i was not able to get was password reset mail 3. I did reported the problem but no use though i did received the response mail but according to them they had send me
nine password reset mail (probably i did tried 9 times) but amazingly i didn't received a single mail. What all can i do now to help please suggest.

aryan goyat - 4 years, 7 months ago

Thanks. I've filed a bug and we will look into it, to confirm that people who request a password reset are indeed getting sent and email and can open it.

If so, that propably indicates that your email server is filtering out our emails. If so, you can add "Brilliant.org" to your trusted list of email senders.

Calvin Lin Staff - 4 years, 7 months ago

I've verified that we've sent you numerous (at least 14) emails with a subject of "Hey aryan, resetting your password on Brilliant ...."

Can you check your spam filters?

Calvin Lin Staff - 4 years, 7 months ago

Thermal Efficiency in a Reversible Process

The answer is 417.

1 solution

0 pending reports