问一些化学问题5(英文的).有计算的1)A vessel with a volume of 43 L contains 8 g of nitrogen gas,26 g of hydrogen gas,and 83 g of Argon gas.At 89 ºC what is the total pressure in the vessel in Pa?2)How much energy in J is needed
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 16:43:18
![问一些化学问题5(英文的).有计算的1)A vessel with a volume of 43 L contains 8 g of nitrogen gas,26 g of hydrogen gas,and 83 g of Argon gas.At 89 ºC what is the total pressure in the vessel in Pa?2)How much energy in J is needed](/uploads/image/z/11271626-26-6.jpg?t=%E9%97%AE%E4%B8%80%E4%BA%9B%E5%8C%96%E5%AD%A6%E9%97%AE%E9%A2%985%EF%BC%88%E8%8B%B1%E6%96%87%E7%9A%84%29.%E6%9C%89%E8%AE%A1%E7%AE%97%E7%9A%841%EF%BC%89A+vessel+with+a+volume+of+43+L+contains+8+g+of+nitrogen+gas%2C26+g+of+hydrogen+gas%2Cand+83+g+of+Argon+gas.At+89+%26ordm%3BC+what+is+the+total+pressure+in+the+vessel+in+Pa%3F2%EF%BC%89How+much+energy+in+J+is+needed)
问一些化学问题5(英文的).有计算的1)A vessel with a volume of 43 L contains 8 g of nitrogen gas,26 g of hydrogen gas,and 83 g of Argon gas.At 89 ºC what is the total pressure in the vessel in Pa?2)How much energy in J is needed
问一些化学问题5(英文的).有计算的
1)A vessel with a volume of 43 L contains 8 g of nitrogen gas,26 g of hydrogen gas,and 83 g of Argon gas.At 89 ºC what is the total pressure in the vessel in Pa?
2)How much energy in J is needed to convert 82 gram of ice at 0 ºC to water at 40 ºC?
specific heat (ice) = 2.10 J g-1 K-1
specific heat (water) = 4.18 J g-1 K-1
heat of fusion (ice) = 333 J g-1
heat of vaporisation (water) = 2258 J g-1
3)The heat of combustion of bituminous coal is 25 kJ/g.What amount of coal (in g) is needed to produce the energy required to convert 99,148 g of ice at 0 ºC to steam at 100 ºC?
ΔHfus(H2O)= 6.01 kJ mol-1
ΔHvap(H2O)= 40.79 kJ mol-1
cp(H2O)= 75.4 J mol-1 K-1
4)A 48 g bar of aluminium (which has a molar heat capacity of 24.03 J mol-1 K-1) is heated to 87 ºC and dropped into a calorimeter containing water (with a specific heat capacity of 4.18 J g-1 K-1) initially at 23 ºC.The final temperature of the water is 44.9 ºC.Calculate the mass of water (in g) in the calorimeter.
MR(Al)= 26.98 g mol-1
问一些化学问题5(英文的).有计算的1)A vessel with a volume of 43 L contains 8 g of nitrogen gas,26 g of hydrogen gas,and 83 g of Argon gas.At 89 ºC what is the total pressure in the vessel in Pa?2)How much energy in J is needed
哇呜...