3 years ago

Which is not a property of a pure substance

Chemistry

1 answer:

NeX [460]3 years ago

3 0

Pure substances are substances<span> that are made of only one type of atom or molecule....</span>

You might be interested in

Which career area in chemistry applies new discoveries to practical applications useful for consumers

trasher [3.6K]

Product development

8 0

3 years ago

Read 2 more answers

When would a cell use Active Transport? Mark all that apply.

Westkost [7]

Answer:

a c e

Explanation:

4 0

3 years ago

Given a gas with an initial volume of 3.0 L and a temperature of 290 K, what is the final volume if the

statuscvo [17]

Answer:

2.8l

Explanation:

just make v2 de subject

6 0

2 years ago

Calculate the standard entropy of vaporization of ethanol at its boiling point, 352 K. The standard molar enthalpy of vaporizati

Korvikt [17]

Answer : The correct option is, (b) +115 J/mol.K

Explanation :

Formula used :

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

where,

$\Delta S$ = change in entropy

$\Delta H_{vap}$ = change in enthalpy of vaporization = 40.5 kJ/mol

$T_b$ = boiling point temperature = 352 K

Now put all the given values in the above formula, we get:

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

$\Delta S=\frac{40.5kJ/mol}{352K}$

$\Delta S=115J/mol.K$

Therefore, the standard entropy of vaporization of ethanol at its boiling point is +115 J/mol.K

8 0

3 years ago

This circuit shows a battery and wires connected to a lightbulb. The chemical energy in the battery is converted to:

____ [38]

Answer:

B. electric energy then chemical energy

Explanation:

3 0

2 years ago