
ENTALPIE. COROZIUNE - PARTEA I

Quiz
•
Science
•
9th Grade
•
Medium
IRINA MARIN
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Într-o reacție endotermă sistemul trece de la o stare mai bogată în energie la o stare mai săracă în energie.
A
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solidificarea apei este un proces exoterm
A
F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reația dintre zinc și acidul clorhidric este o reacție rapidă
A
F
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reacția dintre acidul clorhidric și hidroxidul de sodiu este exotermă
A
F
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În reacţiile endoterme entalpia reactanţilor este mai mică decât entalpia produşilor de reacţie
A
F
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entalpia molară de formare standard a CaCO3(s) este egalǎ cu entalpia reacției reprezentată de ecuația:
Ca(OH)2(s) + CO2(g) → CaCO3(s) + H2O(l);
Ca(s) + C(s, grafit) + 3/2O2(g) → CaCO3(s)
CaO(s) + CO2(g) → CaCO3(s)
Ca(HCO3)2(s) → CaCO3(s) + CO2(g) + H2O(l).
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arderea combustibililor decurge cu absorbţie de căldură din mediul exterior
A
F
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