4) Define thermal energy A) energy associated with the force of an object B) ene

Question

4) Define thermal energy A) energy associated with the force of an object B) energy associated with the gravity of an object C) energy associated with the temperature of an object D) unergy associated with the position or composition of an object 5) All the choices below (A through E) are propeties of hydrogen gas. Which one of the following represents a chemical property ? (The other choices are physical properties) A) It is less dense than air. B) It is gaseous at room temperature. C) It is tasteless. D) lt reacts explosively with oxygen. E) It is colorless.

Explanation / Answer

4. Thermal energy is the energy associated with the temperature of an object. So the correct option is- C) energy associated with the temperature of an object.

5. Density, state, test and color all are physical properties of a substance whereas reactivity is a chemical property of the substance. So the correct option is- D) it explosively reacts with oxygen.

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