返回卡包市场
5.2.1 Enthalpy changes
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片总数: 6 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
卡片预览 (6 张)
#1
正面 (问题)
What is enthalpy change?
背面 (解答)
The heat energy released or absorbed per mole in a reaction.
#2
正面 (问题)
+ sign means what in enthalpy change?
背面 (解答)
Heat is absorbed: endothermic. The temperature of the surroundings (thermometer) goes down.
#3
正面 (问题)
”-“sign means what in enthalpy change?
背面 (解答)
Heat is released: exothermic. The temperature of the surroundings (thermometer) goes up.
#4
正面 (问题)
What unit is enthalpy change?
背面 (解答)
kJ/mole
#5
正面 (问题)
What does enthalpy change rely on?
背面 (解答)
The balance between: - breaking bonds, which absorbs energy - making bonds, which releases energy
#6
正面 (问题)
What is an energy level diagram?
背面 (解答)
A way of representing enthalpy change.