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Heat vs Q

Posted: Sun Feb 10, 2019 10:49 pm
by kanikubari
When do you use change of heat and when do you use Q?

Re: Heat vs Q

Posted: Sun Feb 10, 2019 10:51 pm
by IsabelLight2H
I thought q was the change in heat? Since we can only measure the flow?

Re: Heat vs Q

Posted: Sun Feb 10, 2019 10:52 pm
by Sheridan Slaterbeck 1J
If it asked for change in enthalpy you would solve for deltaH. If it is asking for heat occurring by the system or on the system solve for q.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:13 pm
by Alma Flores 1D
The reaction quotient, Q, is calculated when you need to determine which direction a non-equilibrium reaction will proceed.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:54 pm
by Chris Dis3L
Q is the amount of heat transferred to a system. Delta H on the other hand is a thermodynamic potential. It is essentially the measure of potential energy within a system.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:59 pm
by armintaheri
the change in energy of the system or delta U is equal to q+W. W is energy transferred to the system by work, while q is the energy transferred by heat.