Particulate Nature of Matter B.1 Thermal Energy Transfers (id: 5b10564b3)

本题目来源于试卷: Particulate Nature of Matter B.1 Thermal Energy Transfers，类别为 IB物理学

[单选题]
An immersion heater of constant)fw,d3 m(j .klxs7lrh power output o6d4dxthk6w (is used to supply thermal energy to a cup of water at 373 Kkw(d d46h xt6o. The heater is turned on at time t=0. Which graph shows a possible variation of temperature T of the water, with time t?

A.
B.
C.
D.


参考答案:  A


本题详细解析:

Explanation:

373 K is the boiling point of water. Temperature does not change until all water is boiled. B and C show temperature change at t=0. D is not compatible with the question.

You might have seen graphs that resemble options B and D in this context, they are there to distract you.

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