Heat vs Q

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Heat vs Q

Postby kanikubari » Sun Feb 10, 2019 10:49 pm

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

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Re: Heat vs Q

Postby IsabelLight2H » Sun Feb 10, 2019 10:51 pm

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

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

Re: Heat vs Q

Postby Sheridan Slaterbeck 1J » Sun Feb 10, 2019 10:52 pm

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
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Re: Heat vs Q

Postby Alma Flores 1D » Sun Feb 10, 2019 11:13 pm

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

Chris Dis3L
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Re: Heat vs Q

Postby Chris Dis3L » Sun Feb 10, 2019 11:54 pm

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.

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Re: Heat vs Q

Postby armintaheri » Sun Feb 10, 2019 11:59 pm

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.

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