Answer:

Explanation:
Given data:
0.1 L HCl × 1.020 mol/L = 0.102 mol HCL
0.05 L NaOH × 2.040 mol/L = 0.102 mol NaOH
NaOH + HCl \rightarrow H_2O + NaCl
0.102 mol HCl /1 mol HCl × 1 mol H2O = 0.102 mol H2O
0.102 mol H2O / 1 mol H2O × 57000 J = 5814 J

M(t)=150*1=150 g
we know that heat energy is given as

where c is specific heat
total energy released is = 57 \times 0.102 = 5.814 kJ


Answer:
8) 1500 feet
9) 20 miles
10) 4 Days
11) 2250 miles
12) 1 hour and 5 minutes
13) 27.27miles per hour
Explanation
8) There are 60 seconds in one minute so 60x25=1500 feet
9) 30 minutes is half of an hour so 40 miles ÷ 2 = 20 miles
10) 12x4=48
11) 500 miles x 4.5 hours is 2250 miles
12) Train leaves at 3pm after 60 miles it will be 4 pm and after 5 more miles 4:05 pm so 1 hour and 5 minutes
13)
Elmo = 40 minutes and 5 miles
Bert and Ernie = 45 minutes and 15 miles
Cookie Monster = 20 minutes and 10 miles
Home = 5 minutes abd 20 miles
Average Speed including stops is 27.27 miles per hour
You have a distance and a time so you can work out the bikes speed which would be distance/time so 40mph.
Answer : The partial pressure of
is, 67.009 atm
Solution : Given,
Partial pressure of
at equilibrium = 30.6 atm
Partial pressure of
at equilibrium = 13.9 atm
Equilibrium constant = 
The given balanced equilibrium reaction is,

The expression of
will be,

Now put all the values of partial pressure, we get


Therefore, the partial pressure of
is, 67.009 atm
S.I. Unit of mass is Kilogram which is denoted by Kg
In short, Your Answer would be Option C
Hope this helps!