[单选题]
Water in a beaker is hem) ig hpbo4ep31o95cu wh ed9ak 9x8l(ated on a hot plate at a rate P. The graph shows the cha 2 qxc;.muymj)qja 8-nnge in temperature of the water over timm.yja -n2u);qqx mjc 8e.
Which graph correctly shows the new change in temperature of the water when the rate of thermal energy transfer is increased?
The original graph is shown by the dotted line.
A.
B.
C.
D.
参考答案: D
本题详细解析: Explanation:
When the power increases, the temperature will rise more quickly, giving a larger gradient for the first part.
The change of state will occur at the same temperature as the original graph but take less time to complete.
