When heat moves out of a system, what is the sign of the enthalpy?
- Correct Answer: negative
- N/A (zero)
- it depends
- positive
Explanation: where H is the enthalpy of the system, E is the internal energy, P is the pressure, and V is the volume. It can be difficult to distinguish "heat" and "enthalpy. " Heat measures the transfer of thermal energy between two objects, and enthalpy measures the flow of heat. When heat flows out of a system, the change in enthalpy is negative; when heat flows into a system, the change in enthalpy is positive. Enthalpy is a useful tool for characterizing chemical reactions.
More Random Questions
Ans: Uttarakhand (Than Village, Dehradun)
Ans: Rioblang Dhar
Ans: ammonium
Ans: Magnus Carlsen and Ian Nepomniachtchi
Ans: volcanic winter
Ans: Ozone layer
Ans: 1st
Ans: Sun
Ans: Kantakari Avaleha
Ans: the lungs
Ans: Using energy-efficient bulbs
Ans: Aryna Sabalenka
Ans: uterus
Ans: raise sea levels
Ans: absorption
