Answer:
C. CaCrO4
Explanation:
(A. and D.) have alkaline metals Cs and Na, (B.) has NH4 -ion. Their salts are always soluble.
Answer:
0.4912 kJ/K
Explanation:
Using steam table, the properties of water at stage 1 can be determined:
= 400 kPa
= 60°C
Therefore, from steam table:
specific volume 
entropy 
Calculating the specific volume of water after the partition is removed, since the mass is constant and volume of water is doubled:
Final pressure of water in the tank = 
dryness factor after removing the partition
Therefore:
Thus, the entropy change is:
Δs = 
Therefore, the entropy change of water is 0.4912 kJ/K
Main Answer:
Given data:
Mass of ice m = 12 grams = 12/1000 = 0.012 kg
Specific heat s = 4.18 KJ/ gm-1 C-1
Change in temperature t = t2 - t1
t = 100 - (-10)
t = 100 + 10 = 110C
Heat required Q = m x s x t
Q = 0.012 x 4.18 x 110
Q = 5.5176 KJ
Explanation:
What is heat?
Heat is defined as one of the forms of energy. It is a kinetic energy which can be transferred from one object to another object or medium. It cannot be destroyed or created. The units of heat is Joules in SI system and calories in CGS system.
To know more about heat, please visit:
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The answer to this is a solution
