## Heat vs Q

kanikubari
Posts: 30
Joined: Fri Dec 07, 2018 12:18 am

### Heat vs Q

When do you use change of heat and when do you use Q?

IsabelLight2H
Posts: 34
Joined: Wed Oct 03, 2018 12:15 am

### Re: Heat vs Q

I thought q was the change in heat? Since we can only measure the flow?

Sheridan Slaterbeck 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

### Re: Heat vs Q

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.

Alma Flores 1D
Posts: 64
Joined: Wed Nov 08, 2017 3:01 am

### Re: Heat vs Q

The reaction quotient, Q, is calculated when you need to determine which direction a non-equilibrium reaction will proceed.

Chris Dis3L
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

### Re: Heat vs Q

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.

armintaheri
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

### Re: Heat vs Q

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.