“Joule’s laws”的概念、定义、翻译、参考文献-科学参考

Joule’s laws

Physics

1. The heat (Q) produced when an electric current (I) flows through a resistance (R) for a time (t) is given by Q = I²Rt.

2. The internal energy of a given mass of gas is independent of its volume and pressure, being a function of temperature alone. This law applies only to ideal gases (for which it provides a definition of thermodynamic temperature) as in a real gas intermolecular forces would cause changes in the internal energy should a change of volume occur. See also Joule–Thomson effect.

Chemical Engineering

1. In a wire of given resistance, the heat developed in a given time is proportional to the square of the current.

2. The internal energy of a gas at constant temperature is independent of its volume, provided the gas is ideal.

单词	Joule’s laws
释义	Joule’s laws Physics 1. The heat (Q) produced when an electric current (I) flows through a resistance (R) for a time (t) is given by Q = I²Rt. 2. The internal energy of a given mass of gas is independent of its volume and pressure, being a function of temperature alone. This law applies only to ideal gases (for which it provides a definition of thermodynamic temperature) as in a real gas intermolecular forces would cause changes in the internal energy should a change of volume occur. See also Joule–Thomson effect. Chemical Engineering 1. In a wire of given resistance, the heat developed in a given time is proportional to the square of the current. 2. The internal energy of a gas at constant temperature is independent of its volume, provided the gas is ideal.
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