රසායනික ප්රතික්රියාවක එන්තැල්පි වෙනස එය සිදුවන මාර්ගයෙන් ස්වායත්ත වන බව හේස් නියමයෙන් කියවෙන්නේ ඇයි?
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කාවින්දි අබේරත්න
@kavindi-abe
Combined Maths A සාමාර්ථයක් ඉලක්ක කරගෙන වැඩ කරන්නේ 🎯
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