Answer:
volume of water is 0.1092 m3
Explanation:
We know that heat energy required to convert water into ice is given as
Q =mL
where L is Latent heat of fusion of ice is 336000 Jkg-1
=1000*V
Q = 1000V*336*10^3
Q = 336*10^6 V
ENERGY used by the freezer is given as
= 6.0*1.7*10^3 W = 10,200 w
energy provided per hour is Q = 10,200 W *1*60*60 s = 3.67*10^7 J
THEREFORE we have V
336*10^6 V = 3.67*10^7 j
v = .109 m3
volume of water is 0.1092 m3
Answer: 0.077 M
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant =
t = time taken for decay process = 10 minutes
a = initial amount of the reactant= 0.859 M
a - x = amount left after decay process =?
Putting values in above equation, we get:
Thus the concentration of a after 10.0 minutes is 0.077 M.
Answer
given,
mass of jogger = 67 kg
speed in east direction = 2.3 m/s
mass of jogger 2 = 70 Kg
speed = 1.3 m/s in 61 ° north of east.
jogger one
now
P = P₁ + P₂
magnitude
the angle is north of east