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：六六作业网 时间：2024/11/09 04:49:55
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...