A.a low basket with plastic liner
Answer:
I think a and d is best answer
Answer:
Diversity is the correct option.
Answer:
0.51 moles of gas
Explanation:
Given data:
Pressure of gas = 50.65 kpa (50.65 /101 = 0.5 atm)
Volume of gas = 25 L
Temperature of gas = 300 K
Number of moles of gas = ?
Solution:
The given problem will be solve through ideal gas equation,
PV = nRT
P = pressure
V = volume
n = number of moles
R = general gas constant
T = temperature
Now we will put the values.
0.5 atm × 25 L = n × 0.0821 atm.L /mol.K × 300 K
12.5 atm. L = n × 24.63 atm.L /mol
n = 12.5 atm. L /24.63 atm.L /mol
n = 0.51 mol
Answer:
0.934J/g°C
Explanation:
Using Q = mc∆T
However, in this question;
(Q)water = -(Q)metal
(mc∆T)water = -(mc∆T)metal
According to the information provided in the question;
For water;
m = mass = 72.9g
c = specific capacity of water = 4.184 J/g°C
∆T = 22.9 - 15.9 = 7°C
For metal;
m = mass = 45.7g
c = specific capacity of water = ?
∆T = 22.9 - 72.9 = -50°C
(mc∆T)water = -(mc∆T)metal
(72.9 × 4.184 × 7) = -(45.7 × c × -50)
2135.0952 = -(-2285c)
2135.0952 = 2285c
c = 2135.0952/2285
c of metal = 0.934J/g°C