Heat v. Work

[Caitlin Beale 3E]

What is the difference between heat (q) and work (w)?

[Aishwarya Vadivel 2F]

Heat (q) is the transfer of energy due to a temperature difference, whereas work (w) is the transfer of energy through force acting over a distance.

[Hannah Mirmo 1F]

Both heat and work involve the transfer of energy. The key difference is that heat(q) transfers thermal energy and work (w) transfers mechanical energy.

[Maggie_Harned_3H]

Hello,
The difference between heat (q) and work (w) is the difference in the types of energy transfer. Heat (q) is the transfer of thermal energy and work (w) is the transfer of mechanical energy.

[Lindsey 3C]

Delta U is also equal to qp + w , or delta H + w.

[Daniel Adolfo 2L]

It's easy to confuse heat and work as they both refer to a transfer of energy. However, it should be noted that heat refers to the transfer of thermal energy (temp difference) and work is the transfer of mechanical energy

[Jaylin Heggins 1A]

Heat(q) is a transfer of energy due to temperature difference. Work(w) is the force acting over a distance. Heat/energy is used to do the work of the reaction.

[Brandon_Leong_2J]

Both heat (q) and work (w) are forms of energy transfer; however, heat is a transfer of thermal energy while work is a transfer of physical energy.

[Sydney Silverman 2C]

Additionally, both heat and work contribute to internal energy. Work is the measure of mechanical energy, and heat is a non-mechanical energy transfer. They can both exist simultaneously, or separately in a system.

[Smita Ektare 2J]

Hi! The difference between heat (q) and work (w) is that heat is the transfer of thermal energy whereas work (w) is the transfer of mechanical energy. W is the work done on or by the system. If heat is added into the system, then q will be positive. If the surroundings do work on the system, then w will be positive.

[Christopher Lai 2I]

Heat and work are both terms used to describe the transfer of energy between systems. Heat, however, describes the transfer of thermal energy while work describes the transfer of mechanical energy. Hence, the equation for the net change in the total energy of a system would be equal to the amount of heat added minus the amount of work done.

[James Pham 1A]

Heat is the transfer of energy affecting differences related to temperature. On the other hand, work is the transfer of mechanical energy (force over a distance).

[Suraj Kulkarni 2B]

Hello! So the sum of both work and heat equals the internal energy of the system, where work is the transfer of mechanical energy that is done by the system (negative) or on the system (positive). Heat, however, is a change in thermal energy. None of these properties are state properties (covered in the textbook).