Question

Suppose that a person eats a diet of 2160 Calories per day.

**Express your answer using four significant
figures.**

Convert this energy in J.

Convert this energy in kJ.

Convert this energy in kWh.

Answer #1

Dear student,

Please give a positive rating if satisfied with the answer.

It will be very much appreciated and helpful.

Calculate this problem:
Your friend eats 1800
calories per day.
If he limits his calories
from fat to 30% per day. How many calories
would be from
fat?
How many grams of fat
would this be per day?
How many calories from
saturated fat would this be per day?
How many grams of
saturated fat would this be per day?

1)calculate the equilibrium constants at 25∘C for each
reaction.
Part A
2NO(g)+O2(g)⇌2NO2(g)
Express your answer using two significant figures.
Part B
N2(g)+O2(g)⇌2NO(g)
Express your answer using two significant figures.
2) Calculate the change in Gibbs free energy for each of the
following sets of ΔHrxn, ΔSrxn, and
T.
Part A
ΔH∘rxn=+ 85 kJ , ΔSrxn=+ 155 J/K , T=
298 K
Express your answer as an integer.
Part B
ΔH∘rxn=+ 85 kJ , ΔSrxn=+ 155 J/K , T=
753 K...

Suppose you need 2400 Calories per day just to stay at your
present weight. If you went on a strict diet of 2000 Calories per
day, how long would it take you to lose 5 pounds? (1 pound of fat
is the equivalent of about 4100 Calories.)

N2H2 Express your answer using four significant figures.

Part A
Mass, in grams, of 0.145 mol sucrose (C12H22O11 ).
Express your answer using three significant figures
Part B
Moles of Zn(NO3)2 in 141.50 g of this substance.
Express your answer using four significant figures.
Part C
Number of molecules in 7×10−6 mol CH3CH2OH .
Express your answer using four significant figures.
Part D
Number of N atoms in 0.650 mol NH3 .
Express your answer using three significant figures.

1. Solar cells (the figure) can produce about 40 W of
electricity per square meter of surface area if directly facing the
Sun. How large an area is required to supply the needs of a house
that requires 21 kWh/day? Assume there are 9 hours of sunlight per
day. Express your answer to two significant figures and include the
appropriate units.
2. Energy may be stored by pumping water to a high reservoir
when demand is low and then releasing...

The percent of fat calories that a person consumes each day is
normally distributed with a mean of about 37 and a standard
deviation of about ten. Suppose that 16 individuals are randomly
chosen. Let X = average percent of fat calories.
(a) Give the distribution of X. (Round your standard deviation
to two decimal places.)
X~N ( , )
(b) For the group of 16, find the probability that the average
percent of fat calories consumed is more than...

Part A
Calculate the reaction energy Q for the reaction
p+31H?21H+21H.
Express your answer using four significant figures.
Part B
Part complete
Is this reaction exoergic or endoergic?
endoergic-->correct
exoergic

Calculate the change in Gibbs free energy for each of the
following sets of ΔHrxn, ΔSrxn, and
T.
Part A
ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T=
303 K
Express your answer using two significant figures.
ΔG =
kJ
Part B
ΔH∘rxn= 90. kJ , ΔSrxn= 152 J/K , T=
750 K
Express your answer using two significant figures.
ΔG =
kJ
Part C
ΔH∘rxn= 90. kJ , ΔSrxn=− 152 J/K , T=
303 K
Express your answer...

My little brother eats about 2500 kcal/day and doesn’t gain
weight. Estimate his energy consumption per time, or power, in the
following units. Please SHOW YOUR WORK. (a) W (b) kWh/day (c)
erg/min (d) hp (e) BTU/s

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 38 minutes ago

asked 42 minutes ago

asked 42 minutes ago

asked 42 minutes ago

asked 54 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago