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不利于合成氨N2+3N2=2NH3+4KJ的条件是( )。
A.加正催化剂
B.升高温度
C.增大压强
D.不断地让氨气分离出来,并及时补充氮气和氢气
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A.
B.升高温度,使v(逆)增大,v(正)减小,将导致平衡向左移动
C.加入催化剂,同等程度加快正、逆反应的速率,加速达到平衡
D.增加压力,使pA、pB增大,v(正)增大,而平衡左移
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已知2NO2(g)N2O4(g)(正反应放热),该反应达到平衡后,下列条件有利于反应向正方向进行的是( )。A.降低温度和增大压强
B.降低温度和减小压强
C.升高温度和减小压强
D.升高温度和增大压强
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25、1845年焦耳完成了气体做自由膨胀的过程,下列哪种说法是正确的? In 1845 Joule completed the process of free expansion of gases, which of the following statements is true?A.体积增大,压强增大,温度升高; The volume goes up, the pressure goes up, the temperature goes up;B.体积增大,压强增大,温度降低; The volume goes up, the pressure goes up, the temperature goes down;C.体积增大,压强增大,温度不变; The volume goes up, the pressure goes up, the temperature stays the same;D.体积增大,压强减小,温度不变; The volume goes up, the pressure goes down, the temperature stays the same;
考题
1845年焦耳完成了气体做自由膨胀的过程,下列哪种说法是正确的? In 1845 Joule completed the process of free expansion of gases, which of the following statements is true?A.体积增大,压强增大,温度升高; The volume goes up, the pressure goes up, the temperature goes up;B.体积增大,压强增大,温度降低; The volume goes up, the pressure goes up, the temperature goes down;C.体积增大,压强增大,温度不变; The volume goes up, the pressure goes up, the temperature stays the same;D.体积增大,压强减小,温度不变; The volume goes up, the pressure goes down, the temperature stays the same;
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