E. Methanc 8. The critical temperature and pressure of CS2 are 279 °C and 78 atm
ID: 980490 • Letter: E
Question
E. Methanc 8. The critical temperature and pressure of CS2 are 279 °C and 78 atm, respectively. At temperatures above 279 °C and pressures above 78 atm, CS2 can only occur as a A. solid B. liquid C. liquid and gas D. gas E. supercritical fluid 9. The vapor pressure of any substance at its normal boiling point is A. 1 Pa B. 1 torr C. 1 atm D. equal to atmospheric pressure E. equal to the vapor pressure of water. 0 Which of the following statements is false? A. The absolute value of the heat of sublimation is equal B. The heat of sublimation is equal to the sum of the heat C. The heat of sublimation is equal to the sum of the heat D. The absolute value of the heat of sublimation is equal to the absolute value of the heat of deposition. of vaporization and the heat of melting. of vaporization and the heat of freezing. to the absolute value of the sum of the heat of condensation and the heat of freezing. E. The absolute value of the heat of deposition is equal to sum of the absolute value of the heat of vaporization and the absolute value of the heat of freezing. iqid and gas sold and quid sold Hed added)Explanation / Answer
8. Above critical temperature and critical pressure CS2 can only exist as,
E. supercritical fluid
9. The vpor pressure of any liquid at its boiling point is equal to,
D. equal to atmospheric pressure
10. False statement would be,
C. Heat of sublimation equals to the heat of vaporization and heat of freezing
11. the highest boiling point would be for,
E. CH3CN
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