1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NikAS [45]
3 years ago
8

An experimenter found that for the hydrolysis of lactose, ΔH° = +0.44 kJ mol–1 and ΔS° = +0.031 kJ mol–1 K–1. ΔG°for this reacti

on is:
Chemistry
1 answer:
Ksivusya [100]3 years ago
7 0

Answer:

ΔG° = -8.8 kJ/mol

Explanation:

The standard Gibbs free energy of reaction (ΔG°) can be calculated using the following expression.

ΔG° = ΔH° - T.ΔS°

where,

ΔH°: standard enthalpy of reaction

T: absolute temperature

ΔS°: standard entropy of reaction

At 298 K (the temperature that is usually used), ΔG° for the hydrolysis of lactose is:

ΔG° = ΔH° - T.ΔS°

ΔG° = 0.44 kJ/mol - 298 K × 0.031 kJ/mol.K

ΔG° = -8.8 kJ/mol

You might be interested in
calculate the heat required in joules to convert 18.0 grams of water ice at a temperature of -20 c to liquid water at the normal
KIM [24]

Answer:

Explanation:

Heat required to convert ice to ice at 0⁰C

= mass x specific heat x rise in temperature

= 18 x 2.09 x 20

= 752.4 J .

heat required to convert ice at 0⁰C to water at 0⁰C

mass x latent heat of fusion

= 18 x 336

= 6048 J

Heat required to increase the temperature of water to 100⁰C

= 18 x 4.2 x 100

= 7560 J

Total heat required

7560 + 6048 + 752.4

= 14360.4 J

7 0
3 years ago
What is the best way to organize desert several several million different types of organisms on earth
SCORPION-xisa [38]

Answer:

The desert should be divided into different types based on its properties. The organisms living in specific type of desert should be named accordingly.

Explanation:

There are usually five major types of desert in the world. Tropical, rainy, semi arid desert, coastal desert and dry desert. There are many different types of organisms living in these deserts. The biodiversity has made it difficult for the humans to analyse and identify the millions of different types. The best way is to organize and name the organisms that live in specific types of deserts.

5 0
3 years ago
liz is examing a plant cell under a Microscope she seems many small green oranganelles inside the cell
zmey [24]
It is the chlorophyll/chloroplast. The chlorophyll is the color
4 0
3 years ago
What is the number of moles of beryllium in 36 g of Be?
GarryVolchara [31]
4 moles i believe cos mole = mass/ molar mass
mole =36/9
=4

3 0
3 years ago
Read 2 more answers
AS Of Jahuary 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 years of operating 104
Dmitry [639]

Waste produced by each plant : 0.8 tons per month

<h3>Further explanation</h3>

Given

60,000 metric tons of nuclear waste in 60 years of operating 104

nuclear power plants.

Required

Waste produced

Solution

60,000 metric tons=60 years, so in one year :

\tt \dfrac{60,000}{60}=1000~metric~tons

1000 metric tons/year = 83.33 metric tons/month

For each plant :

\tt \dfrac{83.33}{104}=0.8

4 0
3 years ago
Read 2 more answers
Other questions:
  • Why do we use anhydrous diethyl ether? Choose the right answer.
    11·1 answer
  • The atomic number of an atom refers to its ____.
    14·1 answer
  • A) What characteristics of physical properties distinguish metals from nonmetals?
    8·1 answer
  • How many protons, neutrons, and electrons are in a silver atom, with a mass number of 108?
    13·1 answer
  • What is an example of the third law of thermodynamics?
    13·1 answer
  • At a certain temperature, the Kp for the decomposition of H2S is 0.784. H2S(g)↽−−⇀H2(g)+S(g) Initially, only H 2 S H2S is presen
    13·1 answer
  • HELP ME THIS IS 1 MONTH OVER DUE PLS HURRY
    5·2 answers
  • H20+ SO3 ? Which compound is likely produced by the chemical reaction?​
    7·2 answers
  • True or False: Both molecules and compounds are pure substances.
    8·2 answers
  • Help me please omg I don’t know
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!